Home / 13,305,065.10-19,957,597.65-11,958,747.90

Finding the Fourth Proportional to 13,305,065.10, 19,957,597.65 and 11,958,747.90

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Solution

The fourth proportional to 13,305,065.10, 19,957,597.65 and 11,958,747.90 is: 17,938,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305,065.10 : 19,957,597.65 = 11,958,747.90 : x
  2. Step 2: Convert to fraction form
    13,305,065.10/19,957,597.65 = 11,958,747.90/x
  3. Step 3: Cross multiply
    13,305,065.10x = 19,957,597.65 × 11,958,747.90
  4. Step 4: Simplify right side
    13,305,065.10x = 238,667,878,985,982.44
  5. Step 5: Solve for x
    x = 238,667,878,985,982.44/13,305,065.10
  6. Step 6: Final answer
    x = 17,938,121.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.